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合金元素對TC4鈦合金動態(tài)力學(xué)性能的影響
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國家科技支撐計(jì)劃（2008BAE62B03）


Effect of the Content of Alloying Elements on Dynamic Mechanical Properties of
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    利用分離式Hopkinson壓桿裝置，在應(yīng)變率=2000, 3000, 4000 s-1加載條件下，對4種TC4鈦合金的等軸組織試樣進(jìn)行了動態(tài)壓縮試驗(yàn)，得到了不同狀態(tài)下的動態(tài)真應(yīng)力-應(yīng)變（σ-ε）曲線。結(jié)果表明：隨著Al、V含量的增加，TC4鈦合金等軸組織試樣的平均動態(tài)流變應(yīng)力、均勻動態(tài)塑性應(yīng)變和沖擊吸收功都有所增加，動態(tài)力學(xué)性能有所提高；隨著間隙元素含量的增加，TC4鈦合金等軸組織試樣的平均動態(tài)流變應(yīng)力和沖擊吸收功有所提高，而均勻動態(tài)塑性應(yīng)變有所降低

    Abstract:

    The dynamic mechanical properties of equiaxed microstructures of four TC4 titanium alloys were studied with Split Hopkinson pressure bar device under the strain rates 2000, 3000 and 4000 s-1. Curves of dynamic stress-strain under different conditions were obtained. The results show that the dynamic strength, dynamic strain and absorbed energy of equiaxed microstructures of four TC4 titanium alloys all increase with the increasing content of Al and V. The dynamic mechanical properties have been improved. With the increase of interstitial elements content, the dynamic strength and the absorbed energy of the equiaxed microstructure increase while the dynamic strain decreases.

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劉清華,惠松驍,葉文君,王 國,胡光山.合金元素對TC4鈦合金動態(tài)力學(xué)性能的影響[J].稀有金屬材料與工程,2013,42(7):1464~1468.[Liu Qinghua, Hui Songxiao, Ye Wenjun,,Wang Guo, Hu Guangshan. Effect of the Content of Alloying Elements on Dynamic Mechanical Properties of[J]. Rare Metal Materials and Engineering,2013,42(7):1464~1468.]
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  • 收稿日期:2012-07-23
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